Fix the suggestions card styles.

[AliObaji]

Give the suggestions cards inside the post some style.

Set up the environment and contentful account, run the project, and click on a blog post.
The entire post is not styled well yet, but for now, we can focus on the three suggestions cards at the bottom.

Ideally, the cards should use the same component used for the cards on the home page of the blog. Doing so will maintain a consistent look.

For inspiration, take a look at the suggestions section on TechHive.IO's Blog.

If you believe you have a better idea for the card styles, please let me know. This is good PR for beginners, so please abide by our contributor's guide and let me know if you need any help.